- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 23/22 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having compensating or damping windings
Patent holdings for IPC class H02K 23/22
Total number of patents in this class: 7
10-year publication summary
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0
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0
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3
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1
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0
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0
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0
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0
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2
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 23948 |
1 |
| Denso Corporation | 25936 |
1 |
| Rolls-Royce PLC | 3238 |
1 |
| Hamilton Sundstrand Corporation | 5013 |
1 |
| Safran Electronics & Defense | 1404 |
1 |
| Valeo Equipements Electriques Moteur | 931 |
1 |
| Johnson Electric International AG | 380 |
1 |
| Other owners | 0 |